Eastern Regional Power Committee, Kolkata-33

S K Pradhan, AD-II (Comml.)

Email: shishir.1505@gmail.com, eecom1.erpc@gov.in,

Phone: 8249244719

Actual Generation – Scheduled Generation (For Generators)

Total Actual Drawl – Total Scheduled Drawl (For Beneficiaries)

Worked out for each 15 min time block

Based on average frequency of the relevant time block

Payable for over-drawl/under-injection by buyer/seller

Receivable for under-drawl/over-injection by buyer/seller

ERPC, KOLKATA 2

Came into force on 17.02.2014

To strengthen the grid and improve grid stability

Major provisions:

• Frequency band (50.10-49.7 Hz)

• Volume limit for buyer/seller

• Cap Rate for CERC regulated APM Generators

• Increased charges for deviation due to volume limit.

ERPC, KOLKATA 3

Frequency band has been tightened to 50.05 to 49.85.

Charges for deviation for each 0.01 Hz step is changing everyday.

Deviation price vector linked to Daily Average Area Clearing Price(ACP) in Day Ahead Market of Power Exchange.

Cap Rate for all generators (irrespective of fuel source) ◦ a) For CERC regulated generators- @ECR of Previous month .

◦ b) for Other generators- @ 303.04 Paisa/KWH

Additional deviation charge for sustained unidirectional deviation.

ERPC, KOLKATA 4

ERPC, KOLKATA 5

Existing Fourth Amendment (w.e.f. 01.01.2019)

1. 49.7 Hz to 50.1 Hz 1. 49.85 Hz to 50.05 Hz

2. OD/UD by buyer or OI/UI by sellershall not exceed 12% or 150 MW whichever is lower when freq is 49.7 Hz and above and below 50.1Hz.

2. OD/UD by buyer or OI/UI by seller shall not exceed 12% or 150 MW whichever is lower when freq is 49.85 Hz and above and below 50.05Hz.

3. No OD by buyer or UI by seller when grid frequency is below 49.7 Hz and no UD by buyer or OI by seller when grid frequency is 50.1 Hz and above.

3. No OD by buyer or UI by seller when grid frequency is below 49.85 Hz and no UD by buyer or OI by seller when grid frequency is 50.05 Hz and above.

Existing Deviation Price Vector

ERPC, KOLKATA 6

Frequency Rate for Deviation Charge(RDC)

f>=50.05Hz RDC=0

50.05>f>=50.00 RDC increases by 35.6 p/u for each 0.01Hz step

50.00>f>=49.7 RDC increases by 20.84 p/u for each 0.01Hz step

f<49.7 RDC=824.04p/u

Average freq of the time block (Hz) Charges for Deviation

Below Not below Paise/kWh

50.05 0.00

50.05 50.04 35.60

50.04 50.03 71.20

------ ------ ------

50.01 50.00 178.00

50.00 49.99 198.84

49.99 49.98 219.68

------ ----- ------

49.72 49.71 782.36

49.71 49.70 803.20

49.70 824.04

ERPC, KOLKATA 7

Charges for deviation below 49.85 Hz is fixed at 800p/u, for freq50.05 Hz and above charges for deviation is 0 p/u.

Charges for deviation at 50.00 Hz will be Daily Average AreaClearing Price(ACP) discovered at DAM (Max ceiling being 800 p/u).

The Day-ahead market price of the Power Exchange having amarket share of 80% or more in energy terms on a daily basis shallbe taken into consideration for linking to the DSM price vector.

If no single Power Exchange is having a market share of 80% ormore, the weighted average day-ahead price of power Exchange ofhaving market share of 20% & more shall be used for linking to theDSM price vector.

DSM rate vector will have a dynamic slope determined by joiningthe identified price points at 50 Hz(daily avg. ACP),frequency below49.85 (800p/u) and 50.05 Hz (0p/u) on daily basis.

ERPC, KOLKATA 8

Average freq of the time block (Hz) Charges for Deviation

Below Not below Paise/kWh

50.05 0.00

50.05 50.04 1x(P/5)

50.04 50.03 2x(P/5)

------ ------ ------

50.01 50.00 P

50.00 49.99 50.00+15x(P/16)

49.99 49.98 100.00+14x(P/16)

------ ----- ------

49.87 49.86 700.00+2x(P/16)

49.86 49.85 750.00+1x(P/16)

49.85 800.00

ERPC, KOLKATA 9

P=Average Area Clearing Price

Average freq of the time block (Hz)

Charges for Deviation(paisa/Kwh)

Below Not below

ACP=0 ACP=190.47 ACP=300 ACP=500 ACP=800 ACP>=900

50.05 0 0 0 0 0 0

50.05 50.04 0 38.095 60 100 160 160

50.04 50.03 0 76.190 120 200 320 320

------ ------ ------ ------ ------ ------ ------ ------

50.01 50.00 0 190.476 300 500 800 800

50.00 49.99 50 228.571 331.25 518.75 800 800

49.99 49.98 100 266.666 362.5 537.5 800 800

------ ------ ------ ------ ------ ------ ------ -----

49.87 49.86 700 723.809 737.5 762.5 800 800

49.86 49.85 750 761.904 768.75 781.25 800 800

49.85 800 800 800 800 800 800

ERPC, KOLKATA 10

0.00

100.00

200.00

300.00

400.00

500.00

600.00

700.00

800.00

900.00

49.6

54

9.6

64

9.6

74

9.6

84

9.6

94

9.7

04

9.7

14

9.7

24

9.7

34

9.7

44

9.7

54

9.7

64

9.7

74

9.7

84

9.7

94

9.8

04

9.8

14

9.8

24

9.8

34

9.8

44

9.8

54

9.8

64

9.8

74

9.8

84

9.8

94

9.9

04

9.9

14

9.9

24

9.9

34

9.9

44

9.9

54

9.9

64

9.9

74

9.9

84

9.9

95

0.0

05

0.0

15

0.0

25

0.0

35

0.0

45

0.0

55

0.0

65

0.0

75

0.0

85

0.0

95

0.1

0

DSM

Rate

(Pais

a/K

wh)

Existing DSM Rate Vs Proposed DSM Rate

Existing DSM rate

DSM@ACP=0

DSM@ACP=190.467

DSM@ACP=300

DSM@ACP=500

DSM@ACP=800

ACP=190.467, Step of DSM price vector become uniform

Frequency in Hz

Existing DSM Price Vector Curve DSM Price Vector@ ACP>=800

DSM Price Vector@ACP=0

ERPC, KOLKATA 11

Return

ERPC, KOLKATA 12

0.00

1000.00

2000.00

3000.00

4000.00

5000.00

6000.00

7000.00

8000.00

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Rs/M

WH

Date

Jan'18

May'18

Sep'18

Nov'18

ERPC, KOLKATA 13

Existing Fourth Amendment (w.e.f. 01.01.2019)

1. Generators under APM Fixed Cap rate of 303.04 p/u

1. The CAP rate for CERC regulated Generators shall be equal to its prev. months energy charges billed.

2. No cap rate for other generators Fixed Cap rate for all generatorsirrespective of fuel source of 303.04 p/u

1. Over injection/Under drawl• Charges for deviation receivable for over injection/ under

drawl by seller/buyer in excess of 12% of schedule or150MW whichever is less shall be 0

• When schedule <= 400MW volume capping is fixed at48MW

When frequency is 50.05Hz and above

◦ Additional deviation charges payable for over injection/ under drawl in any time block when f>=50.05 Hz at ACP.

ERPC, KOLKATA 14

2. Under injection/Over drawl• Charges for deviation payable for over drawl/ under

injection by seller/buyer within volume limit in a timeblock in normal deviation charge depending onfrequency

• Additional deviation charges payable for overdrawl/under injection beyond the volume capping

• When schedule <= 400MW volume capping is fixed at48MW

ERPC, KOLKATA 15

Additional Deviation Charge (Under injection/Over drawl)

1. When grid frequency is 49.85 Hz and above

• When 12% of schedule in a time block <= 150MW

• When 12% of schedule in a time block > 150MW

2. When grid frequency is below 49.85 Hz

ERPC, KOLKATA 16

Additional Deviation Charge (Over drawl)

1. When grid frequency is 49.85 Hz and above

ERPC, KOLKATA 17

When 12% <=150 MW When 12%> 150MW Additional Charges

12-15% 150-200MW 20 % of NormalDeviation Charge depending on average freq of that block

15-20% 200-250MW 40 % of NormalDeviation Charge depending on average freq of that block

Above 20% Above 250 MW 100 % of NormalDeviation Charge depending on average freq of that block

Additional Deviation Charge (Under injection)

1. When grid frequency is 49.85 Hz and above

ERPC, KOLKATA 18

When 12% <=150 MW When 12%> 150MW Additional Charges

12-15% 150-200MW 20 % of MIN (Cape rate, Deviation Charge of that time block)

15-20% 200-250MW 40 % of MIN (Cape rate, Deviation Charge of that time block)

Above 20% Above 250 MW 100 % of MIN (Cape rate, Deviation Charge of that time block)

Additional Deviation Charge2. When grid frequency is below 49.85 Hz

• Deviation Charge is payable at 800 p/u

• Additional Deviation Charge is levied at 800 p/u

For generators

• Under CERC regulated–

• Deviation Charge is payable at ECR of previous month

• Additional Deviation Charge is levied at ECR of previous month

• Other generators --

• Deviation Charge is payable at 303.04 p/u

• Additional Deviation Charge is levied at 303.04 p/u

ERPC, KOLKATA 19

1. Injection• Domestic coal/lignite/hydro: Capped at 178 p/u

• Imported coal: Capped at 303 p/u

• RLNG: At 800 p/u

• Exemption from volume limit

• Exemption from sign change violation

2. Drawl• Exemption from volume limit

• No additional charge

• Exemption from sign change violation

ERPC, KOLKATA 20

Deviation Charge for Wind/Solar

ERPC, KOLKATA 21

Absolute Error (%) Under injection (Payable) Over injection (Receivable)

<=15% At the Fixed Rate up to 15% At the Fixed Rate up to 15%

>15% but <=25% At the fixed rate up to 15% + 110% of Fixed Rate for balance energy >15% but <=25%

At the Fixed Rate up to 15% + 90% of fixed rate for balance energy >15% but <=25%

>25% but <=35% At the fixed rate up to 15% + 110% of fixed rate for balance energy >15% but <=25% + 120% of the Fixed Rate for balance energy >25% but <=35%

At the fixed rate up to 15% + 90% of fixed rate for balance energy >15% but <=25% + 80% of the Fixed Rate for balance energy >25% but <=35%

>35% At the fixed rate up to 15% + 110% of fixed rate for balance energy >15% but <=25% + 120% of the Fixed Rate for balance energy >25% but <=35% + 130% of the Fixed Rate for balance energy >35%

At the fixed rate up to 15% + 90% of fixed rate for balance energy >15% but <=25% + 80% of the Fixed Rate for balance energy >25% but <=35% + 70% of the Fixed Rate for balance energy >35%

ERPC, KOLKATA 22

ERPC, KOLKATA22

DEVIATION

UNDERINJECTION / OVERDRAWL

OVERINJECTION / UNDERDRAWL

f < 49.7 Hz f >=50.05

High(DC+ADC) Payable @824.04p/u

(APM Cap Rate 303.04p/u)

50.05>f >=49.7

DC or DC+ADC Payable(Cap Rate for APM

303.04p/u)

f < 49.7 Hz 50.1>f >=50.05 f >=50.150.05>f >=49.7

DC Receivable(Cap Rate for APM

303.04 p/u)No ADC

DC Receivable(Cap Rate for

APM 303.04 p/u)No ADC

No DCADC @ 178 p/u

No DC & ADC

No DC & ADC

DC Deviation ChargeADC Addl. Deviation Charge

Rate @50Hz =178p/uRate @50Hz =ACP

f < 49.85 Hz 50.05>f >=49.85 f >=50.05 f < 49.85 Hz

High(DC+ADC) Payable @800 p/u (Cap Rate for

generators)

DC or DC+ADC Payable(Cap Rate generators)

No DC & ADC

DC Receivable(Cap Rate for generators)

No ADC

50.05>f >=49.85 f >=50.05

No DCADC @ ACPDC Receivable

(Cap Rate for generators)No ADC

ERPC, KOLKATA 23

Existing 4th Amendment

1. In the event of sustained deviation from schedule in one direction (positiveor negative) by any regional entity, such regional entity (buyer or seller)shall have to make sign of their deviation from schedule changed, at leastonce, after every 12 time blocks.

1. In the event of sustained deviation from schedule in one direction (positiveor negative) by any regional entity, such regional entity (buyer or seller)shall have to make sign of their deviation from schedule changed, at leastonce, after every 6 time blocks.

2. No additional charge for above violation.

2. Addl. Charges of 20% of the daily base DSM payable/receivable shall be applicable in case of each said violation.

ERPC, KOLKATA 24

4th Amendment (w.e.f. 01.01.2019) Existing(Before 4th Amendment)

1. Definition of ACP and DAM has been introduced.

1. NIL

2. Frequency band tightened, range being 49.85 Hz to 50.05 Hz

2. Frequency band was 49.7 Hz to 50.1 Hz

3. Deviation charge @ 50 Hz linked to ACP; ceiling being 800 p/u

3. Deviation charge @50.00 Hz was 178 p/u (median value of 6 months avg. energy charge of coal/lignite plants)

4. Max deviation charge is 800 p/u (Below 49.85 Hz)

4. Max deviation charge is 824.04 p/u (Below 49.7 Hz)

ERPC, KOLKATA 25

4th Amendment (w.e.f. 01.01.2019) Existing(Before 4th Amendment)

5.DSM rate vector will have a dynamic daily slope due to linking with ACP.

5. Slope was predefined.

6. The CAP rate for the DSM charges of generating stations regulated by CERC shall be equal to its prev. months energy charges billed.

6. Fixed Cap rate of 303.04 paisa/Unit for APM generating stations regulated by CERC.

7. The CAP rate for the DSM charges of other generating stations (irrespective of fuel sources) shall be 303.04 paisa/unit.

7. No cap rate for other generators.

8. OD/UD by buyer or OI/UI by seller shall not exceed 12% or 150 MW whichever is lower when freq is 49.85 Hz and above and below 50.05Hz.

8.OD/UD by buyer or OI/UI by seller shall not exceed 12% or 150 MW whichever is lower when freq is 49.7 Hz and above and below 50.1Hz.

9. No OD by buyer or UI by seller when grid frequency is below 49.85 Hz and no UD by buyer or OI by seller when grid frequency is 50.05 Hz and above.

9. No OD by buyer or UI by seller when grid frequency is below 49.7 Hz and no UD by buyer or OI by seller when grid frequency is 50.1 Hz and above.

ERPC, KOLKATA 26

4th Amendment (w.e.f. 01.01.2019) Existing(Before 4th Amendment)

10. In the event of sustained deviation from schedule in one direction (positiveor negative) by any regional entity, such regional entity (buyer or seller)shall have to make sign of their deviation from schedule changed, at leastonce, after every 6 time blocks. Addl. Charges of 20% of the daily base DSM payable/receivable shall be applicable in case of said violation.

10. In the event of sustained deviation from schedule in one direction (positiveor negative) by any regional entity, such regional entity (buyer or seller)shall have to make sign of their deviation from schedule changed, at leastonce, after every 12 time blocks. No such additional charge.

Buyers (Under drawl/Over drawl)

ERPC, KOLKATA 27

Sch(MWH)

Act(MWH)

Dev (MWH)

Freq(Hz)

New Dev Rate if ACP is 300 p/u( Rs/MWH)

DCReceivable (+)/Payable(-)(Rs.)

Quantum of Deviation for ADC(MWH)

ADC Payable(Rs.)

1 -200 -160 40 49.95 4562.50 24*4562.5 0 0

2 -200 -250 -50 50.00 3000.00 -50*3000 26 -45600

3 -200 -280 -80 49.98 3625.00 -80*3625 56 -163850

4 -200 -250 -50 49.64 8000.00 -50*8000 50 -50*8000

5 -200 -160 40 50.07 0 0 40 -40*3000

6 -200 -250 -50 50.08 0 0 0 0

7 -50 -30 20 49.84 8000.00 12*8000 0 0

8 -30 -50 -20 49.83 8000 -20*8000 20 -20*8000

Sellers (Under injection/Over injection)

ERPC, KOLKATA 28

Sch(MWH)

Act(MWH)

Dev (MWH)

Freq(Hz)

New Dev Rate if ACP is 300p/u( Rs/MWH)

Dev Rate Applicable (Rs/MWH) (CapRate)

DCReceivable (+)/Payable(-)(Rs.)

Quantum of Deviation for ADC(MWH)

ADC Payable(Rs.)

1 1000(CERC

Regulated)

1100 100 49.85

7687.50 2484 37.5*2484 0 0

2 1000 920 -80 49.90

6125 2484 -80*2484 42.5 -62100

3 1000 1100 100 50.06

0 0 0 0 -100*3000

4 1000 (Other

generators)

950 -50 49.95

4562.50 3030.4 -50*3030.4 12.5 -7576

5 1000 950 -50 50.05

0 0 0 0 0

6 1000 920 -80 49.80

8000.00 3030.40 -80*3030.40 80 -80*3030.4

Infirm Power (Injection/ Drawl)

ERPC, KOLKATA 29

Sch(MWH)

Act(MWH)

Dev (MWH)

Freq(Hz)

Dev Rate If ACPis300P/U( Rs/MWH)

Dev Rate Applicable (Rs/MWH) (for APM)

DCReceivable (+)/Payable(-)(Rs.)

Quantum of deviation for ADC(MWH)

ADC Payable(Rs.)

1 0 10 10 49.95 4562.50 1780.00 10*1780 0 0

2 0 -10 -10 49.91 5812.50 5812.50 -10*5812.50 0 0

3 0 10 10 50.04 600 600 10*600 0 0

Solar (Over injection/ Under injection)

ERPC, KOLKATA 30

Sch(MWH)

Act(MWH)

Dev (MWH)

Dev (MW) Absolute Error(%)(ABS(Dev)/10))*100

Fixed Dev Rate ( Rs/MWH)

DCReceivable (+)/Payable(-)(Rs.)

1 2 1.99 -0.01 -0.04 0.4 9350 -0.01*9350

2 2 2.5 0.5 2 20 9350 4558.13

3 4 2.5 -1.5 6 60 9350 -16479.38

ERPC, KOLKATA 31

Schedule = -200 MWH Actual = -250 MWH Annex-IDeviation = -250-(-200) = -50 MWHFreq = 50.00 Hz, Dev Rate = 3000 Rs/MWHMin ( 12% of sch=24, 37.5) = 24 MWH (So here 12% of sch <150MW or 37.5MWH)DC payable=-50x3000=-150000Over drawl allowed without levy of ADC= 24 MWHQuantum of Over drawl on which ADC to be levied = 50-24 = 26 MWH

12-15% 15-20% Above 20%

3% of sch*20% of Dev Rate of that time block= 0.03*200*0.2*3000= Rs 3600

5% of sch*40% of Dev Rate of that time block= 0.05*200*0.4*3000= Rs12000

(26-8% of sch)*100% of Dev Rate of that time block= (26-16)*1*3000=Rs30000

So total ADC= 3600+12000+30000=Rs 45600

DC & ADC Calculation for Buyer

ERPC, KOLKATA 32

Schedule = 1000 MWH Actual = 920 MWH Annex-IIDeviation = 920-1000 = -80 MWHFreq = 49.90 Hz, Dev Rate = 6125.00 Rs/MWH, Applicable rate=EC of FSTPP I& II=2484 Rs/MWH(Oct’18)Min ( 12% of sch=120, 37.5) = 37.5 MWH (Here 12% of sch >150MW or 37.5MWH)DC Payable=-80x2484 =-198720Under injection allowed without levy of ADC= 37.5 MWHQuantum of Under Injection on which ADC to be levied = 80-37.5 = 42.5 MWH150-200 MW 200-250 MW Above 250 MW

(200-150)/4*20% of MIN (248.4p/u, Deviation Charge of that time block)= 12.5*0.2*2484= Rs 6210

(250-200)/4*40% MIN (303.04p/u, Deviation Charge of that time block)= 12.5*0.4*2484= Rs 12420

(42.5-12.5-12.5)*100% MIN (303.04p/u, Deviation Charge of that time block)= 17.5*1*2484=Rs 43470

So total ADC= 6210+12420+43470=Rs 62100

DC & ADC Calculation for CERC Regulated Generators

ERPC, KOLKATA 33

Schedule = 1000 MWH Actual = 950 MWH Annex-IIIDeviation = 950-1000 = -50 MWHFreq = 49.90 Hz, Dev Rate = 4562.50 Rs/MWH, Applicable rate=3030.4 Rs/MWH(Fixed for other generators)Min ( 12% of sch=120, 37.5) = 37.5 MWH (Here 12% of sch >150MW or 37.5MWH)DC Payable=-50x3030.4 =-151520Under injection allowed without levy of ADC= 37.5 MWHQuantum of Under Injection on which ADC to be levied = 50-37.5 = 12.5 MWH

150-200 MW

(200-150)/4*20% of MIN (248.4p/u, Deviation Charge of that time block)= 12.5*0.2*3030.4= Rs 7576

So total ADC= =Rs 7576

ERPC, KOLKATA 34

Schedule = 50 MWH Actual = 20 MWH Annex-IVDeviation = 50-20 = -30 MWHFreq = 50.00 Hz, Dev Rate =ACP =3000 Rs/MWH (say)Here sch <= 400MW or 100 MWHSo volume limit is fixed at 48 MW or 12 MWHDC Payable=-30x3000=-90000Under injection allowed without levy of ADC= 12 MWHQuantum of Over drawl on which ADC to be levied = 30-12 = 18 MWH

12-15% 15-20% Above 20%

3% of sch*20% of Dev Rate of that time block= 0.03*(400/4)*0.2*3000= Rs 1800

5% of sch*40% of Dev Rate of that time block= 0.05*(400/4)*0.4*3000= Rs 6000

(18-8% of sch)*100% of Dev Rate of that time block= (18-8)*1*3000=Rs30000

So total ADC= 1800+6000+30000=37800Rs.

ERPC, KOLKATA 35

Schedule = 4 MWH Actual = 2.5 MWH Annex-VDeviation = 2.5-4 = -1.5MWH or -6 MWFixed Dev Rate =9350 Rs/MWHAbsolute error (%) = ABS(-6MW/10MW)*100=60Quantum of under injection at FR= 0.15*2.5=0.375 MWHQuantum of under injection at 110% of the FR= 2.5*0.1 = 0.25 MWHQuantum of under injection at 120% of the FR= 2.5*0.1 = 0.25 MWHQuantum of under injection at 130% of the FR= 1.5-0.375-0.25-0.25 = 0.625 MWH

<=15% >15% but <=25% >25% but <=35% >35%

0.375*9350= Rs 3506.25

0.25*1.1*9350=Rs 2571.25

0.25*1.2*9350=Rs 2805

0.625*1.3*9350=Rs 7596.875

So total DC= 3506.25+2571.25+2805+7596.875=16479.38 Rs.

DSM Account for 191118-251118

Existing Regulation(Rs in Lakhs)

4th Amend regulation(Rs in Lakhs)

Payable to the pool(A): 7737.540336 13192.56983

Payable from the pool(B): 7719.881431 13220.32048

Differential Amount Arising from capping of Generating Stations(A-B)

17.6589049 -27.7506511

ADC due to volume limit 289.1063323 555.86881

ADC due to violation of sign change 0 8960.20119

VAE of Eastern Region 168.2082154 288.860182

ERPC, KOLKATA 36

ERPC, KOLKATA 37

-2000

0

2000

4000

6000

8000

10000

12000

14000

Payable to the

pool(A):

Payable from

the pool(B):

Differential

Amount

Arising from

capping of

Generating

Stations(A-B)

ADC due to

volume limit

ADC due to

violation of

sign change

VAE of Eastern

Region

Rs in

lakhs

Existing DSM A/c Vs 4th Amendment DSM A/c for week

191118-251118

Existing

4th Amendment

GRIDCO DVC JUVNL

Existing 4th Amendment Existing 4th Amendment Existing 4th Amendment

DC Payable 521.5930805 920.12527 483.9197059 855.80299 17.37564029 14.96939

ADC Payable(Volume Limit) 68.37199826 124.8002271 103.2919273 193.959021 3.930195068 16.66033544

ADC Payable(Violation of Sign Change) 0 2289.029246 0 2475.021 0 168.941185

Total Payable 589.9650788 3333.954743 587.2116333 3524.783011 21.30583536 200.5709104

ERPC, KOLKATA 38

ERPC, KOLKATA 39

0

500

1000

1500

2000

2500

3000

3500

DC Payable ADC Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

GRIDCO

Existing

4th Amendment

ERPC, KOLKATA 40

0

500

1000

1500

2000

2500

3000

3500

4000

DC Payable ADC

Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

DVC

Existing

4th Amendment

ERPC, KOLKATA 41

0

50

100

150

200

250

DC Payable ADC Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

JUVNL

Existing

4th Amendment

WBSETCL BSPHCL

Existing 4th Amendment Existing 4th Amendment

DC Payable 428.4524282 704.60565 -111.1994556 -217.7278

ADC Payable(Volume Limit) 88.83031976 160.525613 3.201627669 22.24788956

ADC Payable(Violation of Sign Change) 0 1665.470171 0 563.2800298

Total Payable 517.2827479 2530.601434 -107.9978279 367.8001193

ERPC, KOLKATA 42

ERPC, KOLKATA 43

0

500

1000

1500

2000

2500

3000

DC Payable ADC Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

WBSETCL

Existing

4th Amendment

ERPC, KOLKATA 44

-300

-200

-100

0

100

200

300

400

500

600

DC Payable ADC Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

lakhs

BSPHCL

Existing

4th Amendment

CERC REGULATED GENERATORS OTHER GENERATORS

FSTPP I&II TEESTA-V GMRKEL JORETHANG HEP

Existing 4th Amendment Existing4th

Amendment Existing4th

Amendment Existing4th

Amendment

DC Payable 86.43926 89.4901673 -64.3404 -30.2519 48.72793903 79.26821 4.012864 8.30667

ADC Payable(VolumeLimit) 8.541664 10.0937557 0.156154 1.609847 0.016228937 0.065548613 0.02791 0.067948

ADC Payable(Violation of Sign Change) 0 138.699118 0 53.09799 0 139.825519 0 7.232541

Total Payable 94.98092 238.283041 -64.1842 24.45598 48.74416797 219.1592777 4.040774 15.60716

ERPC, KOLKATA 45

ERPC, KOLKATA 46

0

50

100

150

200

250

DC Payable ADC

Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

FSTPP I&II

Existing

4th Amendment

ERPC, KOLKATA 47

-80

-60

-40

-20

0

20

40

60

DC Payable ADC

Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

TEESTA-V

Existing

4th Amendment

ERPC, KOLKATA 48

0

50

100

150

200

250

DC Payable ADC

Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

GMRKEL

Existing

4th Amendment

ERPC, KOLKATA 49

0

2

4

6

8

10

12

14

16

DC Payable ADC Payable(Volume

limit)

ADC

Payable(Violation of

sign change)

Total Payable

Rs in

Lakhs

JORETHANG HEP

Existing

4th Amendment

ERPC, KOLKATA 50